Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cua do snippets" » "mang cua do snippets", "hang ca do snippets", "huong cua do snippets", "hang cua dao snippets", "hang cua bo snippets", "hang cua co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hang cua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang cua do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cua do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.